Low-level indicator and alarm.



A NiwgLL. Low LEVEL momma ugo ALARM.

PPLICTION FILED JULY l29 |918- 1,291,088. Patented Jan. 14,1919.

UNITED STATES ALFRED NEWELL, on OTTAWA, oivfiitio,v elimina.

LOW-LETtTEL INDICATOR AND ALARM.

T0 all whom. it mai/ concern.'

Be it known that L Amann NnwnLL, a subject of the King of Great Britain, and a resident of Ottawa, in the Province of Ontario and .Dominion of Canada, have invented a new and Improved Low-Level Inl dicatoito. and Alarm, of which the following is a description;

My invention although adapted for more general use, is especially-intended foriise in connection with the gasolene tank of an automobile for giving an valarm upon the gaso'lee reaching a predetermined' low level.

' The invention relates to an indicator and alarm employing. a gage tube or cylinder and a float therein; together withmeans 'to automatically close an alarm circuit upon the liquid in the gage reaching a predecrmined low level.

The 'general object of the invention is to provide an indicatoi; and alarm of the type indicated that will clearly indicate thelevel at all times and will iiiitailingly function to give an alarm when the liquid level Jfor -lvlore specifically, the invention has for its purpose to lcause the inovement of the float -to close the c'ircuit 'through the medium of the iiexible means connecting the float. with a .counter-weight; to utilize the counter-A we-ight as an indicating means in coaction with the frage to lthe end that the indicated -level may be ele-arly visible from the drivers seat of the automobil z and to provide tor the ready' application of the attachment to.

an aiiioiiiobile and its gasolene tank. as 'well as to provide a simple anddurable.` constriictii'in Vand promote convenience "in the assemblage and adjustment ot the parts. t l Reference is 'to be had tarilie'accompanying drawings forming a'pari at this? specifi-4 ationf. it being understood that the. draw-h ings areinerelyillustrative ot' one example ci the invention.

-Figuij'e 1' isan elevation with parts in section .of an indicator and alarm embodying myinventioii, showing the saine applied lto an automobile and gasoleiietanl;shown in part; l

F-igl 2. is ai partly sectional elevation taken at rightahgles t Fig.` 1f

- 3 is partllyseotional elevation teken- A at the opposite 'side ofthe` gage from Figz 3. 5'

Fig. 4 is ari-enlarged 'fragmentary Viewn 1n verticaljsection of the upper portion of Specicationof Letters Ifatent.

the gage, an alarm circuit being indicated diagraininatically ',Fig. 5 is a vertical section of a portion of the gage tube oru cylinder and a partlyfsec'- tional side elevation of a. float showing the ii1a1ii'iei',.of connecting the floatwith the flexible 'element suspending the @aine through the medium otmeans including a valve for closing the tube at the top;

Fig. i3 is a side ele 'ation ot the upper1 f" portion ol' the gage tube or cylinder and a manually operable electric switclig Fig. 7 is a horizontal section onthe line 7-7 Fig. (al a The illustrated example of my invention is shown applied 4to an automobile A represented in part, in a manner to'be sustained vvibrator 13 is in circuit with a battery il,

tliewires 15 and lo trom which run respectively to "sheaves l? disposed in tandem. The electric connections with 'the sheaves is establishediii the illustrated example as iollows: rlheslieaves i7 are mounted .on parallel sliaits lo'. turningr in a box 'iii integral with or secured to the top ot the c vlinder 10. (lne wire l5 leads to one shaft 1F and the. other .vire lo malice connection with the other sl att through a switch i() coiisifeting ot' a inaiiuallv operable cra-inl; .arm

llateiite'd Jan, Elli?. f Appiication inea my 29, 191s'.- seiai No. 247,192.

mounted on saidl slialt andsiviiioild@ uw .a f i A orloult. ot. cinitact with a terminalv :Zi to which said wire 'lo is secured. Zl'lie shafts' lo are insulated 'li-oni 'each other and a closing of the switch 20 still leaves the circuit open bctiveenk'tli'e sheaves and -tlic circuit between the. siheaves is'- aiitoinatimilly close-d wlieir the liquid in` thetiibe llieaclies a preileterniined low level,v ae nextalescribed.

icc

The .ozit4 is `emailendedr by' a, sill: ,cord or quivalent runs over the taieineheeves l? aiicleerg and the c l .di it thi'ei.

:xeoleie lama. The Valve in .the i velisti-ultiem' in the iol-ui of nes-ed l Kween the ima :sx-l being cai'i-ieil in the illustra by e valve stein 29 having; en its lo'wei* and a heail $50 ivnieli is ueconuneflutefl iu a iecess oi' bere ii,

tep el the float L7 .y stem 2f? mss through a, tap pluto over the recess Pill..

The described, aii'zxnff4 uuu' wives ll'eeiloui v of play to the float ielul'iif'ely to the valve ,28. Thusa when the llezfit i'ises lie the lof.; oi' the tube Vith the lilliiig oi the tw l the pull ef the 60;, /r-bzilanee web q maintains the valve 2b ever the opening' thereb elosme the latter. lai edibile-n to the t the pull 0I" the Weight ou the vulve .latter is subiect to the p'essuie he 'loa i against the unflei side et tl itseu of the play peiinitecl "l ,lsively te the valve stem.

tw C and tube l0 full of @S the latter is prevented. the connect-ion ef the loei with stein 29 und its h have slight g bilityT Qi l jar of tb lil-eat and a float connected with seid i 1' if etien with a vertical scale in conn a fame Sl-lol the pocket 3.

ily visible a all times from the L se that the amount ol gaso- "yiamuig the mul; will be readily lll,

elaim as new.; und desire lo Patent:

i. il device of the class described ineludiugi' a gage tube adapted te be connected u'iih a liquid container, a 'Heat in said tube, a counter-balance Weight for the floaty a flexible element suspending the Heat and Connected with said Weight to suspend the lutter, saiil tube having :i hole in the top tlieieel: through which said element passes, and a valve mevable 'with said element and float and adjacent to the latter te close said hole upon the float iisinu` io the top of the tube v. th a rise ei" liquid in the latter.

i device eil2 the class described includingr a tube adapted to beiieounected with a liquid containei, the top o'i said tube having a vhole therein, a float in said tube, a counterbalance Weight lfoi the float, flexible means suspending said weight at the exterior of the tube and extending through said hole to the iuteiioi of the tube, a Yalve in the tube amil ea'i'iietl by said flexible means` said valve being adapted to close said hole in the tube1 valve and movable relatively thereto, to permit the lient to press against the undei' si ie of the valve when me liuuiil iu 'libe tube carries the tien? the :former being' adapted to close the. l 4circling between the sheaves.

ALFREU NEWELL.

in conclusion that Whilei* nlfhus7 i; is utilized as an uulufatinu' means .ng thus described injv invention.1 l' secure by Letleisl 

